In compliance with the unanimous request of the American Association of Medical Editors, at its reeent meeting in Cleveland, we have occupied a large part of the space in the present number with the addresses before that body. They relate to topics of much importance, and we hope their reading will not be devoid of interest and profit. The next number will contain the address of the Chairman of the Section on Practical Medicine and Materia Medica, and such other papers belonging to that Section as the space will permit.